Blunt tip vial access cannula and method for manufacture
US9713573B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2013 |
| Grant date | Jul 25, 2017 |
| Priority date | — |
| Expiry date | Jun 18, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/0429
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of manufacturing a metal cannula is disclosed. The method includes the step of providing a metal cannula having a longitudinal axis and defining a fluid channel. Next, the metal cannula is pressed to substantially close the fluid channel and define a first segment and a second segment. In a next step, the metal cannula is cut to separate the first segment from the second segment of the metal cannula. Each of the first and second segments have a pressed edge. The pressed edge substantially seals the fluid channel and has two pressed corners. Afterwards, each of the pressed corners are cut from the pressed edge of the first segment to define a pair of side openings and a distal blunt edge on the first segment. The side openings are in fluid communication with the fluid channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.